Search a number
-
+
165945348 = 22342392143
BaseRepresentation
bin10011110010000…
…10000000000100
3102120020220020000
421321002000010
5314440222343
624244441300
74053340452
oct1171020004
9376226200
10165945348
1185743218
12476a9230
13284c291a
14180799d2
15e87ded3
hex9e42004

165945348 has 60 divisors (see below), whose sum is σ = 435832320. Its totient is φ = 55057968.

The previous prime is 165945343. The next prime is 165945349. The reversal of 165945348 is 843549561.

165945348 is a `hidden beast` number, since 1 + 6 + 594 + 53 + 4 + 8 = 666.

It is a super-2 number, since 2×1659453482 = 55075717045682208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165945343) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76365 + ... + 78507.

It is an arithmetic number, because the mean of its divisors is an integer number (7263872).

Almost surely, 2165945348 is an apocalyptic number.

165945348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165945348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217916160).

165945348 is an abundant number, since it is smaller than the sum of its proper divisors (269886972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165945348 is a wasteful number, since it uses less digits than its factorization.

165945348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2387 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 165945348 is about 12881.9776432037. The cubic root of 165945348 is about 549.5261461372.

The spelling of 165945348 in words is "one hundred sixty-five million, nine hundred forty-five thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 239 324 478 717 956 1434 2143 2151 2868 4286 4302 6429 6453 8572 8604 12858 12906 19287 19359 25716 25812 38574 38718 57861 77148 77436 115722 173583 231444 347166 512177 694332 1024354 1536531 2048708 3073062 4609593 6146124 9219186 13828779 18438372 27657558 41486337 55315116 82972674 165945348